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Black spots on this Morgan dollar

Started by timo16, April 27, 2013

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timo16

Posted April 27, 2013

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Posted April 27, 2013

This Morgan dollar has black spots on the reverse. At first I thought they were gunk and could be removed soaking in distilled water and acetone. Someone mentioned they are carbon spots and read they may be silver oxide spots. What are they? Can they be removed with acetone, and would they result in a details "stained" grade? Not that I am getting it graded.